CN113391415B - Bearing platform of optical signal amplification equipment - Google Patents
Bearing platform of optical signal amplification equipment Download PDFInfo
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- CN113391415B CN113391415B CN202110860967.7A CN202110860967A CN113391415B CN 113391415 B CN113391415 B CN 113391415B CN 202110860967 A CN202110860967 A CN 202110860967A CN 113391415 B CN113391415 B CN 113391415B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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Abstract
The application discloses bearing platform of optical signal amplification equipment, bearing platform include pressure-bearing barrel, optical signal amplification functional unit and two end cover subassemblies. Be provided with first cavity in the pressure-bearing barrel, place first cavity in the light signal amplification functional unit, two end cover subassemblies set up respectively in the both ends of pressure-bearing barrel, and place the pressure-bearing barrel in the end cover subassembly. The contact surface of the end cover assembly and the pressure-bearing cylinder body is provided with a first sealing ring, and the contact surface of the end cover assembly and the pressure-bearing cylinder body is sealed. The end cover assembly comprises a first injection molding body, the first injection molding body wraps the junction of the submarine cable and the end cover nozzle, the submarine cable, the end cover nozzle and the first injection molding body form a first sealing structure, therefore, a complete sealed pressure-bearing cabin body is formed by the pressure-bearing cylinder body and the two end cover assemblies on the two sides, and the sealed pressure-bearing cabin body is arranged in the optical signal amplification functional unit so as to seal the optical signal amplification functional unit by the bearing platform.
Description
Technical Field
The application relates to the technical field of submarine optical cable communication, in particular to a bearing platform of optical signal amplification equipment.
Background
Submarine optical cables, also known as submarine communication cables, abbreviated as submarine cables, enable transoceanic transmission of optical signals via submarine cables. Because the submarine communication distance is long, the optical signal is attenuated in the transmission process, and in order to ensure the transmission quality of the optical signal, the submarine optical signal needs to be amplified at a certain distance, and the equipment for amplifying the submarine optical signal can be called optical signal amplification equipment.
The optical signal amplification device is connected to the submarine cable before being laid on the seabed. Fig. 1 is a schematic diagram of an optical signal amplification device and submarine cable connection, and as shown in the figure, the both ends of optical signal amplification device 1 are connected with submarine cable 2 respectively, optical signal amplification device 1 with be provided with submarine cable joint 3 between the submarine cable 2.
A mode for realizing connection of optical signal amplification equipment and a submarine cable can be that a submarine cable joint 3 is expanded along the diameter of the radial direction according to a preset size, on the basis, the optical signal amplification equipment 1 is connected to the joint 3, an injection molding body 4 is formed at the connection part and the outside of the optical signal amplification equipment 1 through an injection molding process, and the optical signal amplification equipment 1 is wrapped in the injection molding body 4 and isolated from seawater.
However, in a deep sea environment, the injection-molded body 4 is easily damaged by the pressure of the sea, for example, the injection-molded body 4 may crack under the pressure of the sea for a long time, which may cause the optical signal amplifying device 1 to be corroded by the sea water. It can be seen that the sealing property is low in the manner of protecting the optical signal amplifying device 1 by the injection molded body 4.
Disclosure of Invention
The application provides a load-bearing platform of optical signal amplification equipment to solve the problem that the protection leakproofness is low to optical signal amplification equipment at present.
The application provides a load-bearing platform of optical signal amplification equipment, load-bearing platform includes: the device comprises a pressure-bearing cylinder, an optical signal amplification functional unit and two end cover assemblies;
a first cavity is arranged in the pressure-bearing cylinder, and the optical signal amplification functional unit is arranged in the first cavity;
the two end cover assemblies are respectively arranged at two ends of the pressure-bearing cylinder body, the end cover assemblies are arranged in the pressure-bearing cylinder body, and a first sealing ring is arranged on the contact surface of the end cover assemblies and the pressure-bearing cylinder body;
the submarine cable enters the pressure-bearing cylinder from the end cover assembly and is electrically connected with the optical signal amplification functional unit;
the end cover assembly comprises an end cover mouth, an end cover body and a first injection molding body;
the first injection molding body wraps the submarine cable and the intersection of the end cover nozzle, and the submarine cable, the end cover nozzle and the first injection molding body form a first sealing structure.
Therefore, a sealing structure is formed at the position where a gap appears in the first injection molding body, a complete sealed pressure-bearing cabin body is formed by the pressure-bearing cylinder body and the two end cover assemblies on the two sides, and the optical signal amplification functional unit is arranged in the sealed pressure-bearing cabin body so as to realize the sealing of the bearing platform on the optical signal amplification functional unit.
In one implementation, the end cap assembly further comprises a second injection molded body, the second injection molded body is located at one end, close to the end cap body, of the first injection molded body, the second injection molded body wraps the end cap mouth and the outer side of the end cap body, and the first injection molded body and the second injection molded body are integrally molded.
Therefore, a whole injection molding body is formed at the intersection of the submarine cable and the end cover nozzle, the sealing effect can be realized only by once injection molding, and the process is easier to realize.
In one implementation mode, the bearing platform further comprises two photoelectric transition structural members, the photoelectric transition structural members are arranged between the optical signal amplification functional unit and the end cover assembly, and the outer walls of the photoelectric transition structural members are attached to the inner wall of the pressure-bearing cylinder body so as to limit the optical signal amplification functional unit.
Therefore, the photoelectric transition structural parts at two ends of the optical signal amplification functional unit form spacing on the optical signal amplification functional unit in space.
In one implementation, the photoelectric transition structure is an elastic structure.
Therefore, when the optical signal amplification functional unit shakes, the shake amplitude of the optical signal amplification functional unit can be greatly reduced through the elastic performance protection at the two ends, and the transmission quality of the submarine optical signal is further ensured.
In one implementation mode, the bearing platform further comprises two connecting assemblies, the two connecting assemblies are respectively arranged at two ends of the pressure-bearing cylinder body, each connecting assembly comprises an outer shell, the outer shell is of a hollow structure, and the side wall of the outer shell is in butt joint with the side wall of the pressure-bearing cylinder body.
Thus, the connecting assembly protects the exposed part of the submarine cable and the end cover assembly
In one implementation, the end cap assembly further includes a feedthrough structure;
a through hole is formed in the end cover mouth, the through structure is arranged in the through hole, and the outer wall of the through structure is attached to the inner wall of the end cover mouth; the submarine cable enters the pressure-bearing cylinder through the penetrating structure and is electrically connected with the optical signal amplification functional unit.
Thus, the optical fiber and the high-voltage electrified body in the submarine cable are guided into the pressure-bearing cylinder through the through structure, and meanwhile, the through structure can also protect the penetrated optical fiber and the high-voltage electrified body.
In one implementation, the end cap assembly further includes an insulator and a retainer ring;
a first groove is formed in the center of the end cover body, the insulator is arranged in the first groove, the insulator is provided with a through hole, the through hole is coaxial with the through hole, and the outer wall of the penetrating structure is attached to the inner wall of the insulator;
the end cover body is further provided with a second groove, the first groove is communicated with the second groove, the baffle ring is arranged in the second groove, the baffle ring is buckled, and the insulator and the penetrating structure are fixed on the end cover body.
Thus, the high voltage charged body is isolated from the end cap body by the insulator.
In one implementation, the end cap assembly further includes a top gripping ring;
the end cover is characterized in that an end cover surface is arranged on one side, back to the pressure-bearing cylinder, of the end cover body, the jacking ring is screwed into the inner wall of the pressure-bearing cylinder through outer wall threads and is attached to the end cover surface, a plurality of threaded holes are distributed in the jacking ring, and the end cover assembly is fastened on the pressure-bearing cylinder through screws screwed into the threaded holes.
Therefore, the end cover assembly and the pressure-bearing cylinder body achieve a better sealing effect.
In one implementation, the load-bearing platform further comprises two gimbal assemblies;
the universal joint assembly is arranged between the pressure-bearing cylinder and the connecting assembly, and the pressure-bearing cylinder and the connecting assembly are movably connected through the universal joint assembly.
Like this, when the submarine cable takes place to buckle because of external force, the universal joint subassembly can freely bend certain angle, bears the effect of pulling force and torsion force, and the bending force can directly act on the pressure-bearing barrel through the universal joint subassembly, and the inside optic fibre of protection universal joint subassembly etc. do not receive external force to influence and destroy.
In one implementation, a second seal ring is disposed between the end cap body and the insulator.
Therefore, a better electric isolation effect is achieved between the end cover body and the insulator.
In one implementation, the pressure-bearing cylinder includes a first split body, a second split body, and a third split body, and the radial dimensions of the first split body and the third split body are both greater than the radial dimension of the second split body.
Like this, the pressure-bearing barrel forms the thick thin structure in middle of both sides, under the prerequisite of guaranteeing product intensity, the weight of pressure-bearing barrel can be alleviateed in the thick thin design in middle of both ends, simultaneously, is convenient for under the sea floor construction.
In one implementation, the bearing platform further includes two bending limiters respectively located at two sides of the connecting assembly facing away from the pressure-bearing cylinder;
in one implementation, the bending limiter comprises a limiter body, a hoop body and a hoop connecting portion, the hoop body is arranged in one end of the connecting assembly, the hoop connecting portion is achieved through buckling, the connecting assembly is connected with the bending limiter, the limiter body is of a hollow structure, and the limiter body is arranged in a submarine cable.
In this way, the effect on the load-bearing platform equipment is reduced by the restraining effect on the movement of the submarine cable, and the optical fiber penetrating out of the end cover assembly can be prevented from being damaged.
According to the technical scheme, the application discloses bearing platform of optical signal amplification equipment, bearing platform includes pressure-bearing barrel, optical signal amplification functional unit and two end cover subassemblies. Be provided with first cavity in the pressure-bearing barrel, place first cavity in the light signal amplification functional unit, two end cover subassemblies set up respectively in the both ends of pressure-bearing barrel, and place the pressure-bearing barrel in the end cover subassembly. The contact surface of the end cover assembly and the pressure-bearing cylinder body is provided with a first sealing ring, and the contact surface of the end cover assembly and the pressure-bearing cylinder body is sealed. The end cover assembly comprises a first injection molding body, the first injection molding body wraps the junction of the submarine cable and the end cover nozzle, the submarine cable, the end cover nozzle and the first injection molding body form a first sealing structure, therefore, a complete sealed pressure-bearing cabin body is formed by the pressure-bearing cylinder body and the two end cover assemblies on the two sides, and the sealed pressure-bearing cabin body is arranged in the optical signal amplification functional unit so as to seal the optical signal amplification functional unit by the bearing platform.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of an optical signal amplification device connected to a submarine cable;
fig. 2 is a schematic cross-sectional structure diagram of a carrying platform of an optical signal amplifying device according to an embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view of a first injection molded part and a second injection molded part of the present application as a single piece;
FIG. 4 is a schematic cross-sectional view of a photoelectric transition structure provided in an embodiment of the present application;
fig. 5 is a schematic cross-sectional view of an optoelectronic transition structure provided in an embodiment of the present application, which is an elastic structure;
fig. 6 is a schematic cross-sectional view of a connection assembly provided in an embodiment of the present application;
fig. 7 is a schematic cross-sectional view of a feedthrough structure provided in an embodiment of the present application;
fig. 8 is a schematic cross-sectional view of an insulator and a retainer ring according to an embodiment of the present disclosure;
FIG. 9 is a schematic cross-sectional view of a tightening ring according to an embodiment of the present disclosure;
FIG. 10 is a cross-sectional view of a gimbal assembly provided in an embodiment of the present application;
fig. 11 is a schematic cross-sectional view of an insulating layer according to an embodiment of the present disclosure;
fig. 12 is a schematic sectional view of a first split body, a second split body and a third split body of a pressure-bearing cylinder provided in the embodiment of the present application;
FIG. 13 is a schematic cross-sectional view of a bend limiter according to an embodiment of the present application;
fig. 14 is a schematic structural diagram of an optical signal amplification functional unit provided in an embodiment of the present application;
fig. 15 is a schematic cross-sectional view of an insulating layer according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. Other embodiments based on the embodiments of the present application and obtained by a person of ordinary skill in the art without any creative effort belong to the protection scope of the present application.
In the embodiment of the present application, the optical signal amplifying apparatus includes optical devices required for amplifying the optical signal, and circuits for driving the optical devices, wherein the optical devices include, but are not limited to, a thin film filter, a coupler, an optical pump, an attenuated optical fiber, an erbium optical fiber, and an optical isolator, and the circuits for driving the optical devices include, but are not limited to, a filtering circuit, a signal amplifying circuit, a signal control circuit, and a voltage control circuit. In the process of transmitting optical signals by the submarine optical cable, due to the external force damage such as seawater pressure and seawater corrosion, once the optical signal amplification equipment permeates water vapor, the transmission quality of the optical signal amplification equipment can be affected, and therefore the sealing performance of the optical signal amplification equipment needs to be guaranteed.
The embodiment of the application provides a bearing platform of optical signal amplification equipment for bear optical signal amplification equipment.
Fig. 2 is a schematic cross-sectional structure view of a carrying platform of an optical signal amplification device according to an embodiment of the present disclosure. As shown in fig. 2, the bearing platform includes a pressure-bearing cylinder 01, an optical signal amplification functional unit 02, and two end cover assemblies 03.
A first cavity 011 is arranged in the pressure-bearing cylinder 01, the optical signal amplification functional unit 02 is arranged in the first cavity 011, the two end cover assemblies 03 are respectively arranged at two ends of the pressure-bearing cylinder 01, and the end cover assemblies 03 are arranged in the pressure-bearing cylinder 01. When the bearing platform is integrated with the submarine cable 09, the two sides of the bearing platform are connected with the submarine cable 09, and the optical signal amplification functional unit 02 is arranged inside the two end cover assemblies 03 and the pressure-bearing cylinder 01, so that the bearing platform is small in influence factor from the outside, and the assembly process before construction is simplified.
The structure of the load-bearing platform is further explained with reference to the attached drawings. It should be noted that in the embodiment of the present application, the bearing platform may include other components besides the pressure-bearing cylinder 01, the optical signal amplification functional unit 02, and the two end cover assemblies 03. The other components may be symmetrically distributed on two sides of the pressure-bearing cylinder 01 by using the pressure-bearing cylinder 01 as a center, and the two symmetrically distributed components may have the same or similar structure or may be different from each other, which is not specifically limited in the present application.
In order to avoid the breakdown between the optical signal amplification functional unit 02 and the pressure-bearing cylinder 01 due to different voltages, the bearing platform may further include an insulating layer 04. Fig. 15 is a schematic cross-sectional view of an insulating layer according to an embodiment of the present disclosure, where the insulating layer 04 is generally non-metallic, and as shown in the figure, the insulating layer 04 is disposed on an inner wall of the pressure-bearing cylinder 01, so that the optical signal amplification functional unit 02 is spaced apart from the pressure-bearing cylinder 01 by the insulating layer 04 to achieve electrical isolation therebetween.
The contact surface of end cover subassembly 03 and pressure-bearing barrel 01 is provided with first sealing washer 012, and first sealing washer 012 mainly seals the contact surface of end cover subassembly 03 and pressure-bearing barrel 01. On the one hand, the first sealing ring 012 can prevent hydrogen from entering the internal optical signal amplification functional unit 02, thereby preventing the optical device and the circuit from being damaged; on the other hand, the first sealing ring 012 can perform a high-pressure water-blocking function, so as to protect optical devices and circuit devices inside the bearing platform when the bearing platform is installed in a submarine or deep sea environment with a high seawater pressure.
With reference to fig. 2, the end cover assembly 03 includes an end cover mouth 037 and an end cover body 031, and in one implementation, when the submarine cable 09 enters the pressure-bearing cylinder 01 from the end cover assembly 03 and is electrically connected to the optical signal amplification functional unit 02, the submarine cable 09 penetrates through the end cover mouth 037. However, a gap is easily formed at the intersection of the submarine cable 09 and the end cover mouth 037, and the sealing effect is further affected. In order to ensure the sealing effect of the intersection of the submarine cable 09 and the end cover nozzle 037, the end cover assembly 03 further comprises a first injection molding body 041, the first injection molding body 041 can be wrapped at the intersection of the submarine cable 09 and the end cover nozzle 037, the submarine cable 09, the end cover nozzle 037 and the first injection molding body 041 form a first sealing structure 10, and the sealing performance of the intersection of the submarine cable 09 and the end cover nozzle 037 can be ensured through the wrapping effect of the first injection molding body 041. It should be noted that the size of the first injection molded body 041 is not limited, as long as the junction between the submarine cable 09 and the end cap mouth 037 is wrapped.
In one implementation, the endcap assembly 03 further includes a second injection molding 042. FIG. 3 is a schematic cross-sectional view of the first injection molded part and the second injection molded part of the present application. As shown in fig. 3, the second injection molding body 042 is located at one end of the first injection molding body 041 close to the end cover body 031, the second injection molding body 042 wraps the outer sides of the end cover mouth 037 and the end cover body 031, and the first injection molding body 041 and the second injection molding body 042 are integrally formed. Thus, an integral injection molded body is formed at the intersection of the submarine cable and the end cover mouth. The integrated structure can achieve the sealing effect only by once injection molding, and is easier to realize in process.
In addition, the first injection molded body 041 and the second injection molded body 042 may be separate structures, for example, the second injection molded body 042 and the first injection molded body 041 may have a gap, and the application is not limited thereto.
It should be noted that, when the end cap mouth 037 is injection molded, if the end cap mouth 037 is a smooth surface, an injection molded body formed after injection molding is easily peeled off from the smooth surface. In this regard, the outside of the end cap mouth 037 may be arcuate and of a spaced groove design. End cover mouth 037 is the interval groove structure, and the injection molding body that the realization that moulds plastics can correspond according to the interval groove shape produces the interval groove shape during moulding plastics for the injection molding body can be better with the cladding of end cover mouth 037 together, satisfy simultaneously sealed and atress requirement. And, end cover mouth 037 forms the spacing groove and can avoid high voltage breakdown, protects end cover subassembly 03.
As can be seen from the above description, the bearing platform in the embodiment of the present application includes a pressure-bearing cylinder 01, an optical signal amplification functional unit 02, and two end cover assemblies 03. Be provided with first cavity 011 in the pressure-bearing barrel 01, place first cavity 011 in the light signal amplification functional unit 02 in, two end cover subassemblies 03 set up respectively in the both ends of pressure-bearing barrel 01, and place pressure-bearing barrel 01 in the end cover subassembly 03. The first injection molding body 041 is wrapped at the intersection of the submarine cable 09 and the end cover nozzle 037, and the submarine cable 09, the end cover nozzle 037 and the first injection molding body 041 form a first sealing structure 10, so that the pressure-bearing cylinder 01 and the two end cover assemblies 03 on the two sides form a complete sealed pressure-bearing cabin body, and the optical signal amplification functional unit 02 is arranged in the sealed pressure-bearing cabin body to seal the optical signal amplification functional unit 02 by the bearing platform.
After the sealing performance of the bearing platform on the optical signal amplification functional unit 02 is ensured, the optical signal amplification functional unit 02 can perform signal transmission inside the bearing platform. However, in the deep sea environment, when the bearing platform is impacted by external force, the optical signal amplification functional unit 02 can shake along with the external force, and the violent shake can affect the operation of the internal equipment of the optical signal amplification functional unit 02, so as to affect the transmission quality of the submarine optical signal. In order to avoid affecting the signal transmission quality of the optical signal amplification functional unit 02, the bearing platform further comprises a photoelectric transition structural member 06.
Fig. 4 is a schematic cross-sectional structure view of the photoelectric transition structural member provided in the embodiment of the present application, as shown in the figure, the photoelectric transition structural member 06 is disposed between the optical signal amplification functional unit 02 and the end cover assembly 03, and an outer wall of the photoelectric transition structural member 06 is attached to an inner wall of the pressure-bearing cylinder 01. In the position relation, two sides of the photoelectric transition structural component 06 can be tightly attached to the optical signal amplification functional unit 02 and the end cover component 03, and gaps can also be reserved. In this way, the photoelectric transition structural members 06 at the two ends of the optical signal amplification functional unit 02 spatially limit the optical signal amplification functional unit 02, thereby preventing the optical signal amplification functional unit 02 from shaking violently.
The photoelectric transition structure 06 may be an elastic structure. Fig. 5 is a schematic cross-sectional view of an optical-electrical transition structure in an elastic structure according to an embodiment of the present disclosure. As shown in fig. 5, in one implementation, the photoelectric transition structure 06 may be internally provided with a spring along the length direction of the pressure-bearing cylinder 01. The elastic structure of the photoelectric transition structure member 06 has a buffering effect, and when the optical signal amplification functional unit 02 rocks, the elastic performance protection at the two ends can greatly reduce the rocking amplitude of the optical signal amplification functional unit 02, thereby ensuring the transmission quality of the submarine optical signal.
Fig. 14 is a schematic structural diagram of an optical signal amplification functional unit according to an embodiment of the present application. When the submarine cable 09 on both sides of the bearing platform penetrates from the end cover mouth 037 to be electrically connected with the optical signal amplification functional unit 02, the optical fiber and the high-voltage charged body in the submarine cable 09 are electrically connected with the optical signal amplification functional unit 02. As shown in fig. 14, the optical signal amplification functional unit 02 is a long cylindrical shape, and the optical signal amplification functional unit 02 may be divided into several segments or several lobes according to the product configuration requirements, for example, the optical signal amplification functional unit 02 may be divided into two segments or three segments along the radial direction; for another example, the optical signal amplification functional unit 02 may be divided into two lobes, i.e., up and down, left and right, or three lobes, in the axial direction. The petals can be tightly pressed on the pressure-bearing cylinder body 01 by adopting a tensioning mechanism. The following describes the structure of the optical signal amplification functional unit 02 by dividing it into two semicircles in the axial direction, with reference to the drawings.
As shown in fig. 14, optical devices and circuits for driving these devices are disposed inside the semi-circle. The optical devices and circuit devices arranged inside the two semicircles are the same, for example, one of the semicircles is provided with an optical pumping plate 021, a voltage control plate 022, a pumping control plate 023 and a fiber box 024 in sequence from bottom to top, the optical devices arranged inside the fiber box 024 can comprise a coupler, an optical isolator, an erbium fiber and the like, the optical pumping plate 021 is provided with a laser 0211 for emitting laser, and the fiber box 024 is internally provided with an erbium fiber 0241 and a fiber coupler 0242 which are electrically connected.
When the submarine cable outside the bearing platform is connected to the bearing platform, the external submarine cable voltage is input into the bearing platform, the voltage control board 022 of the optical signal amplification functional unit 02 is used for adjusting the input submarine cable voltage, the voltage input from the submarine cable is adjusted to the chip working voltage through the voltage control board 022, the pumping control board 023 is driven to work, the pumping control board 023 adjusts the laser 0211, the laser 0211 emits laser with the specified wavelength, the laser with the specified wavelength is transmitted into the optical fiber box 024, the laser with the specified wavelength is excited through the erbium fiber 0241 to generate laser with the specified wavelength, and the laser with the specified wavelength is combined onto the optical fiber bearing the service signal through the optical fiber coupler 0242, so that the service optical signal of the submarine optical fiber is amplified.
It should be noted that the length of the pressure-bearing cylinder 01 can be adjusted according to the requirement of the configuration number of the internal optical devices, and the product requirements of different optical fiber pairs can be met by adjusting the length of the pressure-bearing cylinder 01. Wherein, pressure-bearing cylinder 01 includes first components 013, second components 014 and third components 015. Fig. 12 is a schematic sectional view illustrating a first, second and third split bodies of a pressure-bearing cylinder provided in an embodiment of the present application, and as shown in fig. 12, a pressure-bearing cylinder 01 is cylindrical, and the radial dimensions of the first and third split bodies 013 and 015 are greater than the radial dimension of the second split body 014, that is, the pressure-bearing cylinder 01 has a structure with thick ends and thin middle, and the design with thick ends and thin middle can reduce the weight of the pressure-bearing cylinder 01 and facilitate the construction on the seabed while ensuring the strength of the product. The pressure-bearing cylinder 01 can be made of titanium alloy, and on one hand, the titanium alloy has good seawater corrosion resistance; on the other hand, under the condition that the specifications are the same, the titanium alloy light pressure-bearing cylinder body is lighter in weight than the steel pressure-bearing cylinder body and the copper pressure-bearing cylinder body, and construction and later maintenance are facilitated.
In order to protect the exposed parts of the submarine cable 09 and the end cover assembly 03, the bearing platform further comprises two connecting assemblies 05, the two connecting assemblies 05 are respectively arranged at two ends of the pressure-bearing cylinder 01, the two connecting assemblies 05 are identical in structure, and one structure is taken as an example for description. Fig. 6 is a schematic cross-sectional structure diagram of the connection assembly provided in the embodiment of the present application, as shown in the figure, the connection assembly 05 includes an outer shell 051, the outer shell 051 is a hollow structure, the side wall of the outer shell 051 is butted with the side wall of the pressure-bearing cylinder 01, that is, the size of the outer wall of the outer shell 051 is matched with the size of the outer wall of the pressure-bearing cylinder 01, so that the submarine cable 09 and the end cover assembly 03 are exposed outside and are both arranged in the hollow outer shell 051, so as to protect the submarine cable 09 and the end cover assembly 03.
In one implementation, the submarine cables 09 are respectively electrically connected with the optical signal amplification functional unit 02 from the two ends of the connecting assembly 05 facing away from the pressure-bearing cylinder 01 through the end cap 037. End cover subassembly 03 still includes feedthrough 033, fig. 7 is the cross-sectional structure schematic diagram of feedthrough 033 that this application embodiment provided, as shown in the figure, be provided with via hole 038 in the end cover mouth 037, place via hole 038 in feedthrough 033, and the outer wall of feedthrough 033 and the inner wall laminating of end cover mouth 037, submarine cable 09 passes through feedthrough 033 and gets into inside and optical signal amplification functional unit 02 electricity of pressure-bearing barrel 01, leading-in inside pressure-bearing barrel 01 with optic fibre and the high voltage electrified body in the submarine cable 09, and simultaneously, feedthrough 033 also can be to the optic fibre and the high voltage electrified body of penetrating protect, wherein, the high voltage electrified body can be the copper pipe in the submarine cable.
Specifically, the external penetrating submarine cable 09 can be divided at the intersection with the penetrating structure 033, the optical fiber in the submarine cable and the high-voltage electrified body such as a copper tube are divided, and the division can be welded if necessary, so that the circulation of optical fiber signals is ensured. Wherein, the copper pipe is electrified, and the copper pipe is through penetrating feedthrough 033 to in the electric signal that makes in the submarine cable leads to the inside optical signal amplification functional unit 02 of pressure-bearing barrel 01 through feedthrough 033, realize that the section of thick bamboo is outer to the power supply of optical signal amplification functional unit 02, realize the intercommunication of electricity promptly.
In another implementation, after the copper pipe and the optical fiber in the submarine cable 09 penetrate through the penetrating structure 033 to reach the end cover body 031, the optical fiber continues to penetrate through the photoelectric transition structural member 06 adjacent to the end cover body 031, and after reaching the optical signal amplification functional unit 02, the optical fiber of the submarine cable 09 is connected with the optical fiber of the optical signal amplification functional unit 02 so as to communicate the optical signals between the submarine cable 09 and the optical signal amplification functional unit 02. And the copper pipe reachs end cover body 031 after, can form the cable on electrified copper pipe in order to prevent voltage breakdown end cover body 031, the cable passes elastic photoelectricity transition structure spare 06 reachs the light signal amplification functional unit 02 after, is connected with voltage control board 022, at this moment, voltage in the sea cable spreads into on voltage control board 022 through the cable, in order to realize the power supply of extra large cable 09 to light signal amplification functional unit 02 outside the drum, namely, the intercommunication of the sea cable 09 with the light signal amplification functional unit 02 signal of telecommunication has been realized.
In terms of optical signal transmission, when the optical fiber in the submarine cable 09 is connected to the optical fiber in the optical signal amplification functional unit 02 for outputting an optical signal, the optical fiber in the submarine cable is functionally fused to optical fibers such as various optical devices in the optical signal amplification functional unit 02. For example, various optical devices are connected with each other in the optical fiber box 024, optical fibers in the submarine cable 09 can be functionally fused with optical fibers of the optical devices, after the functional fusion of the optical fibers is completed, a bundle of optical fibers can be formed to penetrate out of the optical fiber box 024, then the optical fibers can be protected by the photoelectric transition structural member 06 through the elastic photoelectric transition structural member 06, and the optical fibers can be protected from being damaged by the elastic structural design. After passing through the optoelectronic transition structure 06, the optical fiber is guided onto the end cap assembly 03 and then passes out through the feedthrough 033 to the connection assembly 05.
To the output of signal of telecommunication, form the cable after the copper pipe among the extra large cable 09 reachs end cover body 031, the cable passes elastic photoelectric transition structure spare 06 and reachs optical signal amplification functional unit 02 after, spreads voltage into voltage control board 022 through the cable, and later, the cable is worn out from optical signal amplification functional unit 02, on leading-in end cover subassembly 03 of cable through elastic photoelectric transition structure spare 06, and the coupling assembling 05 is worn out to rethread feedthrough 033.
To sum up, the load-bearing platform that this application embodiment provided, through leading-in optical fiber and copper pipe in with outside submarine cable 09 to optical signal amplification functional unit 02, make optical signal amplification functional unit 02 realize the electric and optical function of inside optical device and circuit, reach the purpose of amplifying optical signal, realize optical signal's long-distance transmission.
The end cap assembly 03 is further described below with reference to the drawings. The structures of the two end cap assemblies 03 shown in the foregoing embodiments may be the same or similar, or may be different, and the structure of only one of the end cap assemblies will be described below as an example.
To isolate the high voltage live in the sea cable from the end cap body 031, the end cap assembly 03 further includes an insulator 032 and a stop ring 035. Fig. 8 is a schematic cross-sectional view of an insulator and a baffle ring according to an embodiment of the present disclosure, as shown in fig. 8, an end cover body 031 is provided with a first groove 0311 and a second groove 0312, an insulator 032 is disposed in the first groove 0311, the insulator 032 is provided with a through hole 034, the through hole 034 is coaxial with the through hole 038, an outer wall of the penetrating structure 033 is attached to an inner wall of the insulator 032, and a high voltage charged body in a submarine cable is isolated from the end cover body 031 by the insulator 032.
The first groove 0311 and the second groove 0312 are communicated, the baffle ring 035 is disposed in the second groove 0312, the shape of the baffle ring 035 matches with the shape of the second groove 0312, and the insulator 032 and the penetrating structure 033 are fixed on the end cap body 031 by buckling the baffle ring 035. Fig. 11 is a schematic cross-sectional structure view of the insulating layer according to the embodiment of the present invention, and referring to fig. 8 and 11, the penetrating structure 033 penetrates the insulator 032, and the insulator 032 is under consideration of the installation pressure, and in order to achieve a better isolation effect, as shown in fig. 11, a second sealing ring 0310 is further disposed between the end cap body 031 and the insulator 032, so as to achieve a better electrical isolation effect.
In order to achieve a better sealing effect between the end cover assembly 03 and the pressure-bearing cylinder 01, the end cover assembly 03 may further include a tightening ring 036. Fig. 9 is a schematic cross-sectional structure view of the top tightening ring provided in the embodiment of the present application, as shown by most of the inside of the dashed line frame in the figure, the top tightening ring 036 is an annular structure body having a plurality of threaded holes 0362 on the body and outer wall threads 0361 on the outer ring, specifically, an end cover face 0313 is disposed on one side of the end cover body 031 facing away from the pressure-bearing cylinder 01, and the top tightening ring 036 is screwed into the inner wall of the pressure-bearing cylinder 01 through the outer wall threads 0361 and attached to the end cover face 0313. The direction of the top straining ring 036 perpendicular to pressure-bearing cylinder body 01 is distributed with a plurality of screw holes 0362, and through the screw that screw in and screw hole 0362 match in screw hole 0362, can make the end cover face 0313 and the pressure-bearing cylinder body 01 between combine inseparabler, make the even atress of contact surface of end cover face 0313 and pressure-bearing cylinder body 01, and then with end cover subassembly 03 lock on pressure-bearing cylinder body 01, make and reach better sealed effect between end cover subassembly 03 and the pressure-bearing cylinder body 01.
In the seabed deep sea environment, because there are external forces such as sea water pressure, marine organism striking, load-bearing platform receives the striking easily, in order to protect the submarine cable of being connected with load-bearing platform both sides, load-bearing platform in this application embodiment can also include universal joint subassembly 07.
Fig. 10 is a schematic cross-sectional structure view of a universal joint assembly provided in an embodiment of the present application, and as shown in the drawing, the universal joint assembly 07 is disposed between the pressure-bearing cylinder 01 and the connection assembly 05, and the pressure-bearing cylinder 01 and the connection assembly 05 are movably connected through the universal joint assembly 07. The joint assembly 07 is hollow inside, and a feedthrough 033 extends through the joint assembly 07 and into the connecting assembly 05.
The universal joint subassembly 07 receives the exogenic action and can carry out the deflection of certain direction, when the submarine cable takes place to bend because of the exogenic action, the universal joint subassembly 07 can freely bend certain angle, bear the effect of pulling force and torsion, like this, the bending force can directly act on pressure-bearing barrel 01 through universal joint subassembly 07, protect the inside optic fibre of universal joint subassembly 07 etc. not influenced by the exogenic action and destroy, simultaneously, universal joint subassembly 07 can also hinder the marine macrobiosis gnawed and is eaten destruction optic fibre.
Referring to fig. 10, a universal joint assembly 07 may be configured to include a connecting sleeve 071, a connecting ring 072, a connecting screw 073, an outer protective sleeve 074, and a cylinder connecting sleeve 075. The connecting sleeve 071, the outer protective sleeve 074 and the cylinder connecting sleeve 075 can be connected by a connecting screw 073, and the connecting ring 072 can rotate freely, for example, if there are 4 connecting rings 072, each rotating angle is 16 °, and 4 joints can rotate 64 °, so that the whole gimbal assembly 07 can bend 64 ° in one direction. One side of the universal joint component 07 can be in threaded connection with the connecting component 05 through a connecting sleeve 071, and the other side of the universal joint component 07 is in threaded connection with the pressure-bearing cylinder 01 through a cylinder connecting sleeve 075. This configuration is merely an exemplary illustration and does not represent the actual configuration of the gimbal assembly.
In order to reduce the influence of the deformation tension of the submarine cable on the equipment body of the bearing platform and avoid the submarine cable from bending when the seabed is stressed, the bearing platform in the embodiment of the application can further comprise a bending limiter 08.
Fig. 13 is a schematic cross-sectional view of a bending limiter according to an embodiment of the present application. As shown in the figure, two bending limiters 08 are respectively located at two sides of the connecting assembly 05 facing away from the pressure-bearing cylinder 01, that is, both are arranged at the extreme end position of the load-bearing platform body.
The limiter body 081 has a hollow structure, so that the submarine cable 09 can be built into the limiter body 081. The submarine cable is passed through the hollow limiter body 081, enters the connection block 05, and is fusion-spliced and injection-molded with the optical fiber at the connection block 05. When the submarine cable is stressed to bend, the bending limiter 08 can play a role in limiting the bending angle of the submarine cable, and the influence on the bearing platform equipment is reduced through the limiting effect on the movement of the submarine cable. The optical fiber that wears out among the optical signal amplification functional unit 02, through photoelectricity transition structure spare 06 back, with the leading-in end cover subassembly 03 of optic fibre, wear out to coupling assembling 05 through feedthrough 033, through the limiting displacement of crooked limiter 08 to the submarine cable, also can avoid receiving the destruction from the optic fibre that wears out among the end cover subassembly 03.
The application is suitable for submarine optical cable construction, and mainly provides a reliable platform for optical equipment carrying out photoelectric transmission in the ocean, so that the photoelectric equipment can stably work in the bearing platform. The bearing platform can be reliably transported before construction, and is easy for seabed construction maintenance and the like. The present application is also applicable to communication of oil drilling platforms and other marine devices, and details of application of the technical solution provided in the embodiments of the present application to other designs are not described herein, and those skilled in the art can also think of applying the technical solution of the embodiments of the present application to other designs without departing from the scope of the embodiments of the present application.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It will be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings and described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the following claims.
Claims (9)
1. A carrier platform for an optical signal amplification device, the carrier platform comprising: the device comprises a pressure-bearing cylinder (01), an optical signal amplification functional unit (02) and two end cover assemblies (03);
a first cavity (011) is arranged in the pressure-bearing cylinder (01), and the optical signal amplification functional unit (02) is arranged in the first cavity (011);
the two end cover assemblies (03) are respectively arranged at two ends of the pressure-bearing cylinder body (01), the end cover assemblies (03) are arranged in the pressure-bearing cylinder body (01), and a first sealing ring (012) is arranged on the contact surface of the end cover assemblies (03) and the pressure-bearing cylinder body (01);
a submarine cable (09) enters the pressure-bearing cylinder (01) from the end cover assembly (03) and is electrically connected with the optical signal amplification functional unit (02);
the end cover assembly (03) comprises an end cover mouth (037), an end cover body (031) and a first injection molding body (041);
the first injection molding body (041) wraps the junction of the submarine cable (09) and the end cover mouth (037), and the submarine cable (09) penetrates through the end cover mouth (037) so that the submarine cable (09) enters the pressure-bearing cylinder body (01) and is electrically connected with the optical signal amplification functional unit (02); the sea cable (09), the end cap mouth (037), and the first injection molded body (041) form a first sealing structure (10); the end cover assembly (03) further comprises a second injection molding body (042), the second injection molding body (042) is located at one end, close to the end cover body (031), of the first injection molding body (041), the second injection molding body (042) wraps the outer sides of the end cover mouth (037) and the end cover body (031), and the first injection molding body (041) and the second injection molding body (042) are integrally molded;
the bearing platform further comprises two photoelectric transition structural members (06), the photoelectric transition structural members (06) are arranged between the optical signal amplification functional unit (02) and the end cover assembly (03), and the outer walls of the photoelectric transition structural members (06) are attached to the inner wall of the pressure-bearing cylinder body (01) so as to limit the optical signal amplification functional unit (02); the photoelectric transition structural part (06) is of an elastic structure.
2. The carrying platform of the optical signal amplifying device according to claim 1, further comprising two connecting assemblies (05), wherein the two connecting assemblies (05) are respectively disposed at two ends of the pressure-bearing cylinder (01), the connecting assemblies (05) comprise an outer housing (051), the outer housing (051) is of a hollow structure, and the side wall of the outer housing (051) is butted with the side wall of the pressure-bearing cylinder (01).
3. The load-bearing platform of an optical signal amplification device according to claim 1, wherein the end cap assembly (03) further comprises a feedthrough structure (033);
a through hole (038) is formed in the end cover nozzle (037), the penetrating structure (033) is arranged in the through hole (038), and the outer wall of the penetrating structure (033) is attached to the inner wall of the end cover nozzle (037); the submarine cable (09) enters the pressure-bearing cylinder body (01) through the penetrating structure (033) and is electrically connected with the optical signal amplification functional unit (02).
4. The platform of claim 3, wherein the end cap assembly (03) further comprises an insulator (032) and a baffle ring (035);
a first groove (0311) is formed in the center of the end cover body (031), the insulator (032) is arranged in the first groove (0311), a through hole (034) is formed in the insulator (032), the through hole (034) is coaxial with the through hole (038), and the outer wall of the penetrating structure (033) is attached to the inner wall of the insulator (032);
end cover body (031) still is provided with second recess (0312), first recess (0311) with second recess (0312) intercommunication, keep off ring (035) set up in second recess (0312), through to keep off ring (035) lock, insulator (032) with feedthrough (033) are fixed on end cover body (031), through insulator (032) with the electrified body of high voltage with end cover body (031) keep apart.
5. The carrier platform of an optical signal amplification device according to claim 1, wherein the end cap assembly (03) further comprises a tightening ring (036);
end cover body (031) dorsad one side of pressure-bearing barrel (01) is provided with end cover face (0313), tight ring (036) in top passes through outer wall screw thread (0361) screw in the inner wall of pressure-bearing barrel (01), and with end cover face (0313) laminating, it has a plurality of screw holes (0362) to distribute on tight ring (036) in top, through screw in screw hole (0362) will end cover subassembly (03) lock is in on pressure-bearing barrel (01).
6. The load-bearing platform of an optical signal amplification device according to claim 2, characterized in that it further comprises two gimbal assemblies (07);
the universal joint assembly (07) is arranged between the pressure-bearing cylinder body (01) and the connecting assembly (05), and the pressure-bearing cylinder body (01) and the connecting assembly (05) are movably connected through the universal joint assembly (07).
7. The platform of claim 4, wherein a second sealing ring (0310) is disposed between the end cap body (031) and the insulator (032).
8. The load-bearing platform of an optical signal amplification device according to claim 1, wherein the pressure-bearing cylinder (01) comprises a first split body (013), a second split body (014) and a third split body (015), and the radial dimensions of the first split body (013) and the third split body (015) are each larger than the radial dimension of the second split body (014).
9. The carrying platform of the optical signal amplifying device according to claim 2, further comprising two bending limiters (08), wherein the two bending limiters (08) are respectively located at two sides of the connecting assembly (05) facing away from the pressure-bearing cylinder (01);
the bending limiter (08) comprises a limiter body (081), a clamp body (082) and a clamp connecting portion (083), one end of the connecting assembly (05) is arranged in the clamp body (082), the connecting assembly (05) is connected with the bending limiter (08) through buckling the clamp connecting portion (083), the limiter body (081) is of a hollow structure, and the submarine cable (09) is arranged in the limiter body (081).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110860967.7A CN113391415B (en) | 2021-07-29 | 2021-07-29 | Bearing platform of optical signal amplification equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110860967.7A CN113391415B (en) | 2021-07-29 | 2021-07-29 | Bearing platform of optical signal amplification equipment |
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| CN113391415A CN113391415A (en) | 2021-09-14 |
| CN113391415B true CN113391415B (en) | 2022-10-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113687485B (en) * | 2021-10-20 | 2022-01-21 | 华海通信技术有限公司 | Submarine optical cable branch equipment |
| CN113671653B (en) * | 2021-10-25 | 2022-01-21 | 华海通信技术有限公司 | Sea cable joint box sealing device |
| CN113820813B (en) * | 2021-11-24 | 2022-02-08 | 华海通信技术有限公司 | Tensioning mechanism and internal unit for submarine optical cable system |
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| WO2004057385A1 (en) * | 2002-12-19 | 2004-07-08 | Red Sky Systems, Inc. | Hermetically sealed optical amplifier module to be integrated into a pressure vessel |
| CN2852156Y (en) * | 2005-12-27 | 2006-12-27 | 江苏中天科技股份有限公司 | Submarine cable branch joint case |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7529020B2 (en) * | 2002-11-19 | 2009-05-05 | Huawei Marine Networks Co., Ltd. | Optical amplifier module housed in a universal cable joint for an undersea optical transmission system |
| US7436584B2 (en) * | 2002-12-13 | 2008-10-14 | Red Sky Subsea, Ltd. | Optical amplifier module housed in a factory cable joint |
| CN100495101C (en) * | 2007-11-15 | 2009-06-03 | 江苏中天科技股份有限公司 | Deep sea optical cable coupling box and connecting process thereof |
| CN104216081B (en) * | 2014-09-22 | 2017-01-11 | 中天科技海缆有限公司 | Deep-sea optical cable extrusion molding branch joint box and mounting process thereof |
| CN208399762U (en) * | 2018-06-15 | 2019-01-18 | 江苏亨通海洋光网系统有限公司 | A kind of sea floor optoelectronic composite cable deep-sea terminal separation device |
| CN110932220B (en) * | 2019-11-15 | 2021-10-19 | 烽火海洋网络设备有限公司 | Seabed photoelectric separation equipment |
| CN211147694U (en) * | 2019-12-09 | 2020-07-31 | 郭燕午 | Photoelectric sensor protection shell |
| CN112130267A (en) * | 2020-10-27 | 2020-12-25 | 上海亨通海洋装备有限公司 | Submarine optical cable connection box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2004057385A1 (en) * | 2002-12-19 | 2004-07-08 | Red Sky Systems, Inc. | Hermetically sealed optical amplifier module to be integrated into a pressure vessel |
| CN2852156Y (en) * | 2005-12-27 | 2006-12-27 | 江苏中天科技股份有限公司 | Submarine cable branch joint case |
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